Specification :

Diamond core bits are available for stone drilling, such as marble, granite, sandstone, limestone, etc. quick, smooth and accurate coring with professional results. Segment type can be done with crown or turbo type segment.
Diameter: 28-70mm
Thread size, 3/ 8� or 1/ 2� shaft without thread
Delivery time: Around 30days

We, Johnson Tools Manufactory Co., Ltd is professional manufacturer of diamond tools which used in stone and construction industries, such as marble, granite, sandstone, limestone, basalt, grit stone, concrete, reinforced concrete and asphalt, etc.) In China, we have eleven years successful exporting experience and 100 percent of our products are exported to worldwide ( Euro, UK, Germany, Sweden, Italy, Spain, Portug, Czech, USA, South Africa, Ghana, Egypt, Australia, Yemen, Iran, PK, India, etc.) .

More information about our company, please visit our website: http: / / www.diatoolscn.com.